1
JEE Main 2022 (Online) 25th June Evening Shift
+4
-1

The interference pattern is obtained with two coherent light sources of intensity ratio 4 : 1. And the ratio $${{{I_{\max }} + {I_{\min }}} \over {{I_{\max }} - {I_{\min }}}}$$ is $${5 \over x}$$. Then, the value of x will be equal to :

A
3
B
4
C
2
D
1
2
JEE Main 2022 (Online) 25th June Evening Shift
+4
-1

A light whose electric field vectors are completely removed by using a good polaroid, allowed to incident on the surface of the prism at Brewster's angle. Choose the most suitable option for the phenomenon related to the prism.

A
Reflected and refracted rays will be perpendicular to each other.
B
Wave will propagate along the surface of prism.
C
No refraction, and there will be total reflection of light.
D
No refraction, and there will be total transmission of light.
3
JEE Main 2022 (Online) 25th June Morning Shift
+4
-1

The two light beams having intensities I and 9I interfere to produce a fringe pattern on a screen. The phase difference between the beams is $$\pi$$/2 at point P and $$\pi$$ at point Q. Then the difference between the resultant intensities at P and Q will be :

A
2 I
B
6 I
C
5 I
D
7 I
4
JEE Main 2022 (Online) 25th June Morning Shift
+4
-1

A light wave travelling linearly in a medium of dielectric constant 4, incidents on the horizontal interface separating medium with air. The angle of incidence for which the total intensity of incident wave will be reflected back into the same medium will be :

(Given : relative permeability of medium $$\mu$$r = 1)

A
10$$^\circ$$
B
20$$^\circ$$
C
30$$^\circ$$
D
60$$^\circ$$
JEE Main Subjects
Physics
Mechanics
Electricity
Optics
Modern Physics
Chemistry
Physical Chemistry
Inorganic Chemistry
Organic Chemistry
Mathematics
Algebra
Trigonometry
Coordinate Geometry
Calculus
EXAM MAP
Joint Entrance Examination